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Topic: Diels-Alder reaction?  (Read 3090 times)

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Offline polydamas

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Diels-Alder reaction?
« on: December 01, 2009, 11:24:28 PM »
Hi, I'm having trouble understanding this Diels-Alder reaction. (pg 492 of McMurry Organic Chemistry)

I think I understand, but that methyl group is throwing me off  ???
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Offline Oxygen

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Re: Diels-Alder reaction?
« Reply #1 on: December 01, 2009, 11:28:16 PM »
I have no idea where that methyl is coming from either.  Might be an error in the book?
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Offline orgopete

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Re: Diels-Alder reaction?
« Reply #2 on: December 01, 2009, 11:54:07 PM »
Since that is a pet peeve of mine, I would say definitely an error. The first line of reasonableness is that the number of atoms must match between starting materials and products, this clearly does not. 
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